2. Changeable; changing; fickle. [Obs.]

He is variant, he abit [abides] nowhere.

Chaucer.

Va"ri*ant (?), n. [Cf. F. variante.] Something which differs in form

from another thing, though really the same; as, a variant from a type

in natural history; a variant of a story or a word.

Va"ri*ate (?), v. t. & i. [L. variatus, p. p. of variare. See Vary.] To

alter; to make different; to vary.

Va`ri*a"tion (?), n. [OE. variatioun, F. variation, L. variatio. See

Vary.]

1. The act of varying; a partial change in the form, position, state,

or qualities of a thing; modification; alternation; mutation;

diversity; deviation; as, a variation of color in different lights; a

variation in size; variation of language.

The essences of things are conceived not capable of any such variation.

Locke.

2. Extent to which a thing varies; amount of departure from a position

or state; amount or rate of change.

3. (Gram.) Change of termination of words, as in declension,

conjugation, derivation, etc.

4. (Mus.) Repetition of a theme or melody with fanciful embellishments

or modifications, in time, tune, or harmony, or sometimes change of

key; the presentation of a musical thought in new and varied aspects,

yet so that the essential features of the original shall still preserve

their identity.

5. (Alg.) One of the different arrangements which can be made of any

number of quantities taking a certain number of them together.

Annual variation (Astron.), the yearly change in the right ascension or

declination of a star, produced by the combined effects of the

precession of the equinoxes and the proper motion of the star. —

Calculus of variations. See under Calculus. — Variation compass. See

under Compass. — Variation of the moon (Astron.), an inequality of the

moon's motion, depending on the angular distance of the moon from the

sun. It is greater at the octants, and zero at the quadratures. —

Variation of the needle (Geog. & Naut.), the angle included between the

true and magnetic meridians of a place; the deviation of the direction

of a magnetic needle from the true north and south line; — called also

declination of the needle.

Syn. — Change; vicissitude; variety; deviation.

Var`i*cel"la (?), n. [NL., dim. of LL. variola smallpox.] (Med.)

Chicken pox.

||Var"i*ces (?), n. pl. See Varix.

||

Va*ric"i*form (?), a. [Varix + - form.] (Med.) Resembling a varix.

Var"i*co*cele (?), n. [Varix a dilated vein + Gr. &?; tumor: cf. F.

varicocèle.] (Med.) A varicose enlargement of the veins of the

spermatic cord; also, a like enlargement of the veins of the scrotum.

Var"i*cose` (?; 277), a. [L. varicosus, from varix, -icis, a dilated

vein; cf. varus bent, stretched, crooked.]

1. Irregularly swollen or enlarged; affected with, or containing,

varices, or varicosities; of or pertaining to varices, or varicosities;

as, a varicose nerve fiber; a varicose vein; varicose ulcers.

2. (Med.) Intended for the treatment of varicose veins; — said of

elastic stockings, bandages. and the like.

Var`i*cos"i*ty (?), n. 1. The quality or state of being varicose.

2. An enlargement or swelling in a vessel, fiber, or the like; a varix;

as, the varicosities of nerve fibers.

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